NS2 Simulation Code for Wimax

• Advantages of wimax:

• QoS robust control.
• Cost & CPE availability.
• Superior performance.
• Provides flexible channel bandwidth.
• Cost effectiveness.
• More flexible.

Characteristics of NS2 Simulation Code for Wimax technology:

• Provide scalable bandwidth and data rate support.
• Very high peak data rates.
• Provides robust security.
• Link layer transmissions.
• Flexible and dynamic per user resource allocation.
• Adaptive modulation and coding.
• It’s support for mobility.
• Ip-based architecture.
• It’s OFDM-based physical layer.
• Quality-of-service support.
• It supports for both TDD and FDD.

Sample code for wimax technology:
This code is used for know how to define the debug values and coverage are in wimax networks.
#define debug values
Mac/802_16 set debug_ 0
#Mac/802_16 set rtg_ 20
#Mac/802_16 set ttg_ 20
#Mac/802_16 set frame_duration_ 0.008
Mac/802_16 set client_timeout_ 110 ;#to avoid BS disconnecting the SS since the traffic starts a 100s
Phy/WirelessPhy/OFDM set g_ 0.25

#define coverage area for base station: 20m coverage
Phy/WirelessPhy set Pt_ 0.025
#Phy/WirelessPhy set freq_ 2412e+6
#Phy/WirelessPhy set RXThresh_ 2.90781e-09
Phy/WirelessPhy set RXThresh_ 2.025e-12 ;#500m radius
Phy/WirelessPhy set CSThresh_ [expr 0.9*[Phy/WirelessPhy set RXThresh_]]